Based on the information in this module, a biohazard spill that involves release from a centrifuge to the open laboratory is considered __________? 1) A low-risk biohazard event. No further action is needed. 2) Not classified as a spill as it was within equipment. 3) A minor spill that does not require immediate evacuation from the laboratory. 4) A high-risk biohazard release with significant potential for aerosol generation. Immediate evacuation from the laboratory is required.